Posey's first grand slam since June 24, 2015, against San Diego was the fourth grand slam by a Giant this season and the first since Austin Slater's on July 6th against St. Louis. It was the first ...

Posey went 2-for-5 with a grand slam in Friday's 10-7 extra-inning win over the Brewers. The veteran catcher made his fourth home run of the season count, taking Matt Albers deep in the top of the ...

Aside from becoming the first Giants catcher to hit a grand slam and steal a base in the same game since Roger Bresnahan in 1903, Buster Posey also got a huge kick out of the way his team ...

San Francisco Giants' Buster Posey, right, hits a grand slam as Los Angeles Dodgers catcher Yasmani Grandal, left, and home plate umpire Laz Diaz watch during the third inning of a baseball game ...

Updated: 7:06 PM PDT Jul 13, 2014 Editorial Standards ⓘ SAN FRANCISCO — Madison Bumgarner was so enthused by seeing Buster Posey hit a grand slam, he did the same thing the next inning.

Bumgarner became the first pitcher in 48 years to hit two grand slams in a season, and Posey also hit a slam Sunday that boosted the Giants over the Arizona Diamondbacks 8-4 at AT&T Park.

Buster Posey and Madison Bumgarner became the first major league battery to hit grand slams in the same game on Sunday. They did so in consecutive innings as the Giants beat the Diamondbacks 8-4 ...

LOS ANGELES (AP) — Buster Posey hit a grand slam and the San Francisco Giants got two RBIs each from Brandon Crawford and Matt Duffy in a 9-5 win over the Los Angeles Dodgers on Friday night.

MILWAUKEE (AP) -- Buster Posey hit a grand slam in the top of the 10th inning to lift the San Francisco Giants to a 10-7 win over the Milwaukee Brewers on Friday night.